Images might help in analyzing the problem, but without that I would recommend: ADD MOAR STRUTS! if your rocket is just unsteerable it might be because it isn't stable enough, and the rocket is wobbling itself to death. To check, when you put it on the launch pad, does it wobble around or does it stay stable?(watch the nav ball) If it's wobbling on the pad, try adding some more struts. Try adding some canards to it, these can give you some control of your rocket in the ascent stage. Check your rocket balance, make sure that everything on the rocket is symmetrical. . anything that is imbalanced in even the slightest way is going to make your rocket torque one way or the other. Hope some of this helps man, happy launching